Cationic-Dyeable Polyester (Cationic / CDP)
Cationic-Dyeable Polyester (Cationic / CDP) — Two-tone and melange fabrics · cross-dye sportswear/fashion knits-wovens · deep brilliant shade and dye-resist (reserve) effects. Deep brilliant shades and high colorfastness; cross-dyes with regular polyester in one bath → two-tone/melange/reserve effects at no extra dyeing cost.
Cationic-dyeable polyester is made by copolymerising a third monomer (SIPM) into the PET chain; the resulting sulphonate sites bind cationic dyes. The cost of that chemical intervention is visible in the table: tenacity of 2.3–3.0 cN/dtex is the lowest in the catalogue and boiling-water shrinkage reaches 7.0. In return you can cross-dye against regular polyester in a single bath — two-tone, melange and reserve effects come out with no extra dyeing cost. Only 50/72 and 75/72 are in production; coarse filaments and the 100/150 denier range are not available in this family.
| Construction | A third monomer (SIPM) copolymerized into PET; sulfonate sites bond cationic/basic dyes |
|---|---|
| Process | Cationic-dyeable copolymer; CDP (HTHP) and ECDP (low-temperature) types |
| Luster | Deep, vivid color; luster on request |
| Yarn family | Functional & Sustainable |
| Typical use | Two-tone and melange fabrics · cross-dye sportswear/fashion knits-wovens · deep brilliant shade and dye-resist (reserve) effects |
| Strength | Deep brilliant shades and high colorfastness; cross-dyes with regular polyester in one bath → two-tone/melange/reserve effects at no extra dyeing cost. |
| Watch for | CDP needs high pressure/temperature; cross-dyeing requires pairing with regular disperse-dyeable polyester. |
Width, gauge, finishing options and test standards are shared on request.
Related reading: Recycled Polyester (rPET) in Knits · Cationic-Dyeable Polyester (CDP/ECDP) · Solution-Dyed (Dope-Dyed) Polyester · Bio-Based and Alternative Polyesters: bio-PET, PTT, PBT
Related calculators: rPET Recycling Savings Calculator — Estimated Energy & Bottle Equivalent · DPP Data Preparation & Validation — Digital Product Passport Data Card · Yarn Count Converter — Denier · Tex · Dtex · Nm · Ne
Other yarns in the same family: Recycled Polyester (rPET) rPET · Chemically-Regenerated (“Refiber”) Polyester Regenerated · Bright / High-Luster (“Lumine”) Yarn Bright
Technical values
| Construction | Denier | Tenacity (cN/dtex) | Elongation at break (%) | Boiling-water shrinkage (%) | Crimp contraction (CC %) | Intermingling (points/m)low · medium · high | Spin finish — OPU (%) |
|---|---|---|---|---|---|---|---|
| 50D/72f | 49–51 | 2.3–2.9 | 12–18 | 4.5–7.0 | 16–24 (medium) | 0–10 / 40–65 / >85 | 1.2–1.7 |
| 75D/72f | 73–76 | 2.4–3.0 | 15–21 | 4.0–7.0 | 24–34 (high) | 0–10 / 40–60 / >80 | 1.2–1.8 |
Values are typical production bands; exact batch figures are shared in the order report.
Test methods: Denier ISO 2060 · Tenacity ISO 2062 · Boiling-water shrinkage ISO 18066 · Crimp contraction ISO 5688
Packaging & dispatch
| Net weight per cone | 5.0–6.0 kg (varies on custom runs) |
|---|---|
| Tube type | Cylindrical paper tube |
| Pallet | 24 cones per layer · 4–7 layers · 480–1,008 kg net |
| Quality | Standard production quality (A) |
Trade & dispatch
| HS heading | 5402.33 — Textured yarn, of polyesters |
|---|---|
| Origin | Türkiye — Çorlu, Tekirdağ |
| Shipping documents | Commercial invoice · packing list · A.TR movement certificate · transport document |
| Delivery terms | EXW · FOB · DAP — shipping plan confirmed with your quotation |
The HS heading is indicative; final classification is made by the customs broker based on the sample’s composition, width and finish.
Frequently asked questions
What specification is Cationic-Dyeable Polyester (Cationic / CDP) produced in?
A third monomer (SIPM) copolymerized into PET; sulfonate sites bond cationic/basic dyes. Deep, vivid color; luster on request.
How is Cationic-Dyeable Polyester (Cationic / CDP) produced?
Cationic-dyeable copolymer; CDP (HTHP) and ECDP (low-temperature) types
What is Cationic-Dyeable Polyester (Cationic / CDP) used for?
Two-tone and melange fabrics · cross-dye sportswear/fashion knits-wovens · deep brilliant shade and dye-resist (reserve) effects. Deep brilliant shades and high colorfastness; cross-dyes with regular polyester in one bath → two-tone/melange/reserve effects at no extra dyeing cost. CDP needs high pressure/temperature; cross-dyeing requires pairing with regular disperse-dyeable polyester.
What are the minimum order, lead time and delivery terms?
Minimum order (MOQ): 500–1,000 kg per colour — varies by fabric · Lead time: Typically 3–4 weeks from order confirmation to dispatch · Sampling: Sampling begins after a short technical consultation · Response time: Quotation requests answered within 2 business days · Delivery terms: EXW · FOB · DAP — shipping plan confirmed with your quotation.